Miguel Navascués | The high retail interest rates in Spain, over 8% compared to at least 4% in France and other Eurozone countries, without doubt indicates usurious behavior, of the banks’ abuse of power at the expense of the customer, who on the other hand ought to inform and educate himself and refuse to pay these rates. I would say that, in fact, there is an oligopolistic factor in Spanish banking which stamps its slant on the interest rates it charges.